/* ---------------------------------------------------------------
   Daniel Viedienin — personal site
   Design language: an incident-report / patient-chart aesthetic —
   hairline rules, a left index margin, a vitals-strip stat block —
   grounded in EMS run-sheets rather than generic card UI.
----------------------------------------------------------------- */

:root {
  --ink: #14191c;
  --ink-soft: #2a3033;
  --muted: #5b6265;
  --paper: #faf9f6;
  --paper-alt: #eeece5;
  --line: #d9d6cd;
  --signal: #c8371f;   /* emergency red-orange, used once with intent */
  --pulse: #1f6f5c;    /* monitor green, links & secondary accents */
  --max-width: 880px;
  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-ui: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding-block: 56px; }
.section + .section { border-top: 1px solid var(--line); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 12px; top: 12px;
}

a { color: var(--pulse); }
a:hover { color: var(--signal); }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 16px;
  gap: 16px;
}

.site-header__id {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}
.site-header__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
}
.site-header__role {
  font-size: 0.8rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 24px;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  padding-block: 4px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--signal);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 0;
  width: 40px;
  height: 36px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle__bar {
  width: 18px;
  height: 2px;
  background: var(--ink);
  display: block;
}

/* ---------- Hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding-block: 56px 40px;
}

.hero__eyebrow {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 8px;
}

.hero__title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 0.3em;
}

.hero__lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 60ch;
}

.hero__cta {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
}
.btn:hover { color: var(--ink); border-color: var(--signal); }
.btn--primary {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--paper);
}

.hero__photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid var(--ink);
  display: block;
}

/* ---------- Vitals strip ---------- */

.vitals {
  display: flex;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: 28px;
  gap: 0;
}
.vitals__item {
  flex: 1;
  padding-inline: 24px;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.vitals__item:first-child { border-left: none; padding-left: 0; }

.vitals__number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  color: var(--signal);
}
.vitals__label {
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- Skills / tag list ---------- */

.tag-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-list li {
  border: 1px solid var(--line);
  padding: 6px 14px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- Section head with link ---------- */

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.section__head h2 { margin: 0; }
.section__head a { font-size: 0.9rem; text-decoration: none; }
.section__head a:hover { text-decoration: underline; }

/* ---------- Post list ---------- */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-list__item {
  padding-block: 20px;
  border-top: 1px solid var(--line);
}
.post-list__item:first-child { border-top: none; }
.post-list__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--ink);
}
.post-list__title:hover { color: var(--signal); }
.post-list__excerpt {
  color: var(--ink-soft);
  margin: 6px 0;
}
.post-list__item time {
  font-size: 0.85rem;
  color: var(--muted);
}
.post-list__empty { color: var(--muted); padding-block: 12px; }

/* ---------- Page / Post / Prose ---------- */

.page__title, .post__title { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.page__lede { color: var(--ink-soft); max-width: 65ch; }
.post__meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 6px; }

.prose {
  max-width: 68ch;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.7;
}
.prose h2 {
  margin-top: 1.6em;
  font-size: 1.4rem;
  border-top: 1px solid var(--line);
  padding-top: 0.8em;
}
.prose p { margin: 0 0 1.2em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose li { margin-bottom: 0.4em; }
.prose a { text-decoration-thickness: 1px; }
.prose blockquote {
  margin: 1.4em 0;
  padding-left: 1em;
  border-left: 2px solid var(--signal);
  color: var(--ink-soft);
  font-style: italic;
}
.prose code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  background: var(--paper-alt);
  padding: 0.15em 0.4em;
  font-size: 0.9em;
}
.prose pre {
  background: var(--ink);
  color: var(--paper);
  padding: 16px;
  overflow-x: auto;
}
.prose pre code { background: none; padding: 0; color: inherit; }

.post-nav {
  padding-block: 32px 64px;
}
.post-nav a { text-decoration: none; }
.post-nav a::before { content: "\2190\0020"; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 32px;
  margin-top: 24px;
}
.site-footer__row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.site-footer__note {
  color: var(--ink-soft);
  max-width: 60ch;
  margin: 0;
}
.site-footer__links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.site-footer__links a { text-decoration: none; font-size: 0.9rem; }
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__copy {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 8px 0 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    padding-block: 32px 24px;
  }
  .hero__photo { order: -1; max-width: 260px; }

  .vitals { flex-direction: column; gap: 16px; }
  .vitals__item { border-left: none; padding-left: 0; padding-block: 12px 0; border-top: 1px solid var(--line); }
  .vitals__item:first-child { border-top: none; padding-top: 0; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .site-nav.is-open { max-height: 260px; }
  .site-nav a {
    padding: 14px 24px;
    border-bottom: 1px solid var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}